Date: Mon, 08 Oct 2001 21:53:06 -0500 From: David Kelly <dkelly@hiwaay.net> To: freebsd-questions@FreeBSD.ORG Cc: Louis LeBlanc <leblanc+freebsd@smtp.ne.mediaone.net> Subject: Re: dhclient/ifconfig questions. Message-ID: <200110090253.f992r6w62557@grumpy.dyndns.org> In-Reply-To: Message from Louis LeBlanc <leblanc%2Bfreebsd@smtp.ne.mediaone.net> of "Mon, 08 Oct 2001 15:03:51 EDT." <20011008150351.A1543@acadia.ne.mediaone.net>
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Louis LeBlanc writes:
> Hey folks. A little rc.conf/ifconfig/dhcp trouble here.
> =
> Here is what I have:
> =
> fxp0 - internal interface
> xl0 - external interface
> =
> fxp0 is easy. No problems configuring that.
> =
> xl0 is giving me a headache. Here is what I need to do:
> Set ether to 00:A0:CC:33:55:25 and configure with dhclient.
> Sounds easy, but . . .
> =
> Here is what I'm doing in rc.conf:
> =
> defaultrouter=3D"NO"
> dhcp_program=3D/sbin/dhclient
> dhcp_flags=3D""
> gateway_enable=3D"YES"
> hostname=3D"acadia.ne.mediaone.net"
> ifconfig_fxp0=3D"inet 10.8.20.5 netmask 255.255.255.0"
> ifconfig_xl0=3D"DHCP ether 00:A0:CC:33:55:25"
> . . .
[...]
> I looked thru the rc.conf manpage and could not find any details on
> passing the ether setting to a dhcp configured interface. Is it
> possible to do so? I know putting an ifconfig xl0 ether . . . command
> in dhclient-enter-hooks won't work, since the address has to be right
> before dhclient even requests an IP.
> =
> I won't really need it to work this way for long,
> as I will be calling my ISP to set up the new hardware address once I
> am fairly sure everything else works well.
Typed a lot of great ideas and kept scratching my head, "How did I sub
the new ethernet card for old late one night after the ISP's help line
went to bed? Then thought to "grep lladdr /etc/*" and turned up some
left over cruft:
/etc/start_if.fxp0.old:ifconfig fxp0 lladdr 00:90:27:0d:e3:94
and remembered. Not sure its documented anywhere other than in
/etc/rc.network but here it is:
dhcp_interfaces=3D""
for ifn in ${network_interfaces}; do
if [ -r /etc/start_if.${ifn} ]; then
. /etc/start_if.${ifn}
eval showstat_$ifn=3D1
fi
Before dhclient is launched on dhpc interfaces, /etc/start_if.${ifn} is =
executed if it exists. So make an /etc/start_if.xl0 containing
ifconfig xl0 ether 00:A0:CC:33:55:25
and that's all there is to it.
-- =
David Kelly N4HHE, dkelly@hiwaay.net
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
The human mind ordinarily operates at only ten percent of its
capacity -- the rest is overhead for the operating system.
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